Like this:

A note of appreciation to Dawn Feda, Hirshfield’s Shop At Home, for a job well done.

Good Morning Dawn,

I’ve been meaning to email you since my window treatments were installed– I love them—you are amazing at walking in and determining just what my tastes are and then finding the materials and designs to compliment

Please pass my email on to your superiors or whoever—you are a real talent

And also—please note that your installer was careful and pleasant to have in my home as well

Thanks again and I will definitely recommend you and contact you on my next project